Hibiscus plant named ‘Lilac Crush’

ABSTRACT

A new and distinct cultivar of winter-hardy, herbaceous, perennial, hybrid  Hibiscus  plant named ‘Lilac Crush’ comprising flattened, rounded, compact, mound habit of multiple, well-branched, mostly upright stems producing flowers from the bottom to the top of the plant for at least eight weeks beginning mid-summer. Flowers have large petals of deep-lilac with a small, dark-red, shiny eye surrounded by a narrow rose-red zone and a large column displaying light yellow-colored pollen nearly the entire length. The foliage is primarily tri-lobed with medium to dark-green color.

Botanical classification: Hibiscus hybrid (L.).

Variety denomination: ‘Lilac Crush’.

STATEMENT REGARDING PRIOR DISCLOSURES UNDER 37 CFR 1.77(b)(6)

The first publically released non-enabling description was a photograph and brief description of the new plant first on Dec. 1, 2021, when it was listed on websites operated by Walters Gardens, Inc. and Proven Winners®, followed on Jun. 8, 2022, as a photograph and brief description in the “Walters Gardens 2022-2023 Catalog, followed with a non-enabling description and photograph in the “Walters Gardens, Inc. 2022-2023 Catalog on Jun. 8, 2022. Walters Gardens, Inc and Proven Winners® obtained the new plant and all information about the new plant from the inventor. The first disclosure, in the form of a sale, was made by Walters Gardens, Inc. on Feb. 28, 2022, to The Big Greenhouse, Ltd. followed by sales to Midwest Groundcovers, LLC., Bordine Nursery, Four Star Proven Winners® and Quality Greenhouses by Walters Gardens, Inc. Walters Gardens, Inc. obtained the new plant and all information relating thereto, from the inventor. No plants of Hibiscus ‘Lilac Crush’ have been sold, in this country or anywhere in the world, nor has any disclosure of the new plant been made, more than one year prior the filing date of this application, and such sale or disclosure within one year was either derived directly or indirectly from the inventor.

BACKGROUND AND ORIGIN OF THE PLANT

The present invention relates to the new and distinct hardy, herbaceous, Hibiscus plant, Hibiscus ‘Lilac Crush’ hybridized under the direction of the inventor on Sep. 6, 2018, at a wholesale perennial nursery in Zeeland, Mich. The new plant is a hybrid of the complex, unreleased, proprietary hybrid known as 17-x-1 (not patented) times the unreleased, proprietary hybrid 16-62-9 (not patented). Into the trial process, the new plant was assigned the breeder code labeled 18-253-1. Both parents have a complex mixture of species in them, comprising the species: moscheutos, lasiocarpus, and coccineus.

Hibiscus ‘Lilac Crush’ was first asexually propagated in the late summer of 2020 by sterile shoot-tip tissue culture and later by shoot-tip cuttings at the same nursery in Zeeland, Mich. The resultant asexually propagated plants have been found to be stable and true to type in successive generations of asexual reproduction.

BRIEF SUMMARY OF THE PLANT

Hibiscus ‘Lilac Crush’ differs from its parents as well as all other hardy herbaceous Hibiscus known to the applicant in many traits. The most similar Hibiscus known to the applicant are: ‘Berrylicious’ U.S. Plant Pat. No. 24,062, ‘Berry Awesome’ U.S. Plant Pat. No. 27,936, ‘Fantasia’ U.S. Plant Pat. No. 11,853, ‘Plum Crazy’ U.S. Plant Pat. No. 11,854, and ‘Plum Fantasy’ U.S. Plant Pat. No. 25,986.

‘Berrylicious’ has flowers of mauve-lavender, a smaller habit. ‘Berry Awesome’ has a slightly smaller habit, the flowers are deeper lavender-pink with greater folding and the foliage has a greater burgundy coloration. ‘Fantasia’ has smaller habit with less branching and the flowers are a more reddish lavender. ‘Plum Crazy’ has a slightly smaller habit, the foliage more burgundy coloration and the flower is more reddish plum. ‘Plum Fantasy’ has a taller and narrower habit, the foliage is more burgundy blushed, and the flowers are more puckered and have a more reddish-magenta color.

The female parent was not retained as either a plant or with photography, so no comparison is possible. The male parent has a shorter more open habit, mostly tri-lobed foliage and the flower is smaller, more cupped, and has a deeper red center eye and the base color is lavender.

Hibiscus ‘Lilac Crush’ is a unique hardy herbaceous Hibiscus with the following combined traits:

-   -   1. Winter-hardy compact perennial with flattened, rounded, mound         habit of multiple, well-branched, basal stems.     -   2. Many flat rotate flowers are produced from the bottom to the         top of the plant.     -   3. Flowers produced for at least eight weeks beginning         mid-summer.     -   4. Flower petals of deep-lilac with a small, dark-red, shiny         eye, surrounded by a narrow rose-red zone.     -   5. Flower a large column with anthers nearly the entire length         and light-yellow pollen.     -   6. Foliage is mainly tri-lobed with a medium dark-green color.

BRIEF DESCRIPTION OF THE DRAWINGS

The photographs of the new plant demonstrate the overall appearance of the plant, including the unique traits grown in Zeeland, Mich. The colors are as accurate as reasonably possible with color reproductions. Ambient light spectrum, source, and direction may cause the appearance of minor variations in color.

FIG. 1 shows a three-year-old plant in full flower in a display garden.

FIG. 2 shows a close-up of the flower.

DETAILED BOTANICAL DESCRIPTION

The following descriptions and color references are based on the 2015 edition of The Royal Horticultural Society Colour Chart except where common dictionary terms are used. The new plant, Hibiscus ‘Lilac Crush’, has not been observed under all possible environments. The phenotype may vary slightly with different environmental conditions, such as temperature, light, fertility, moisture, and maturity levels, but without any change in the genotype. The following observations and size descriptions are of three-year-old plants in the loamy-sand full-sun trial garden at a nursery in Zeeland, Mich. with supplemental fertilizer and water as needed. The plants are of natural habit and were not treated with plant growth regulators, nor were they pinched at any time in the growth year.

-   Parentage: The female or seed parent is known by the breeder code     17-x-1, the male or pollen parent is known by the breeder code     16-62-1; -   Propagation:     -   -   Method.—Shoot tip cuttings and sterile shoot-tip plant             tissue culture.         -   Time to initiate roots from tissue culture.—About two weeks.         -   Rooting habit.—Normal, branching, developing thick to about             2.5 cm diameter, fleshy; root color creamy yellow nearest             RHS 161D depending on soil type.         -   Crop time.—Under normal summer growing conditions 12 to 16             weeks to flower in a four-liter container from cutting;             plant vigor very good. -   Plant description:     -   -   Plant habit.—Winter-hardy herbaceous perennial with about 54             thick, mostly upright, heavily-branched stems producing an             upright spreading mound to about 148 cm tall and about 240             cm wide.         -   Stem.—Cylindrical, glabrous, glaucous; to about 148 cm tall             and about 22 mm diameter at base, average about 141 cm tall             and about 12 mm diameter at base.         -   Stem color.—Between RHS 146D and RHS 145A.         -   Lateral branches.—Up to 7 per stem, average about 5 per             stem; cylindrical, glabrous, glaucous; to about 20 mm long             and 2 mm diameter at base, not branched distally.         -   Lateral branch color.—Between RHS 146D and RHS 145A.         -   Internode color.—Indistinguishable in color from surrounding             stem. -   Foliage description: Mostly tri-lobed, rarely 5-lobed; lobes     dissected nearly to petiole, leaves in proximal one-third of stems     dissected to about half or one-third of the way to petiole;     alternate; apex narrowly acute; base rounded to nearly cordate;     margin coarsely and irregularly dentate; glabrous abaxial and     adaxial; adaxial and abaxial surface matte when mature, adaxial     lustrous when first expanding; leaf blades to about 14.8 cm long and     about 15.8 cm across, average blade size 12.0 cm long and 12.5 cm     wide; no fragrance detected.     -   -   Foliage color.—Young expanding leaves adaxial between RES             146B and RHS 146C, abaxial nearest RHS 148B without obvious             anthocyanin blushing; mature leaves adaxial between RHS 137A             and RHS 137B with very light anthocyanin blushing, abaxial             between RHS 147B and RHS 147C with very light anthocyanin             blushing.         -   Veins.—Palmate; lustrous and flat on adaxial; matte and             costate on abaxial.         -   Vein color.—Young adaxial midrib and veins nearest RHS 147C,             abaxial veins between RHS 147C and RHS 146C with midrib             nearest RHS 147C; mature adaxial midrib nearest RHS 195B             distally and proximally nearest RHS 182D with secondary             veins variable nearest 146D, abaxial midrib and proximal             secondary veins nearest RHS 145C and distal secondary veins             nearest RHS 146B.         -   Petioles.—Mostly cylindrical and slightly applanate on whole             adaxial side; glaucous; glabrous; to about 11 cm long and             4.5 mm diameter at base, average size about 8.5 cm long and             3 mm wide at base.         -   Petiole color.—Ventral between RHS 145A and RHS 145B, dorsal             proximally between RHS 145A and RHS 145B faintly blushed             anthocyanin, distally nearest RHS 146B with faint blushing             nearest 187B. -   Flower description: Complete; perfect; actinomorphic; rotate; mostly     outward facing; rotate; lasting up to two days on plant; to about     19.5 cm across and cupped to 7.0 cm deep, with column extending 40.0     mm long; flower size decreasing distally; -   Buds one day prior to anthesis: Ellipsoidal with bluntly rounded     apex with petals slightly opened and bluntly rounded base; sepals     adpressed to petals; about 6.2 cm long and about 3.8 cm diameter in     middle; -   Bud color one day prior to anthesis: Exposed petal color nearest RHS     N77B and calyx nearest RHS 146D; -   Epicalyx: Typically, 11 to 13 per flower; linear; entire, glabrous,     with margin micro ciliate; dull surface abaxial and adaxial;     narrowly acute apex and truncate base, distally arcuate around     calyx; about 20.0 mm long and about 2.5 mm wide at base; -   Epicalyx color: Adaxial nearest RHS 146C and abaxial nearest RHS     146B without anthocyanin blushing; -   Calyx: Star-shaped hypanthium; campanulate; 20 mm deep and 52 mm     across; -   Sepals: Five, fused in basal 12 mm and free in distal 22 mm; acute     apex; glabrous; margin entire, edentate; abaxial and adaxial     surfaces matte; individually about 34 mm long when flattened, about     17 mm wide at fusion; -   Sepal color: Adaxial between RHS 146D and RHS 145A, veins nearest     RHS 146B; abaxial between RHS 146C and RHS 146D without anthocyanin     blushing; -   Flowers: Solitary, up to 24 per main stem without pinching; slightly     cupped face; mostly outwardly facing; natural spread to about 19.5     cm across and 7 cm deep from stigma to base of calyx; smaller in     later season; -   Flower lastingness: Persist for one to two days; effective at least     eight weeks beginning late July; -   Flower fragrance: None detectable; -   Petals: Five; glabrous; lustrous eye adaxial and abaxial; adnate to     the androecium to form a column, imbricate to about 30% overlapping     at widest part (petals overlapping 30% to the petals on either     side); palmately veined, primary veins impressed on adaxial and     slightly costate abaxial; surface slightly dimpled and slightly     puckered longitudinally; rounded with distinct claw and limb;     margins entire, edentate; apex rounded; base short claw-like; -   Petal size: Average about 12 cm across and about 11 cm long     narrowing to claw base about 7 mm across (smaller in later part of     flowering season); -   Petal color: Adaxial central and distal region nearest RHS 75A where     covered by other petal, and between RHS 76B and RHS 76C where     exposed to direct sunlight, center eye 5 mm wide nearest RHS 53A,     with a more distal eye ring about 12 mm thick nearest RHS 59A;     primary veins nearest RHS N77C and secondary veins nearest RHS 76D;     abaxial basal 2 mm of eye nearest RHS NN155D, distal 15 mm of eye     blend between RHS 67C and RHS 67B, distal blade where adaxial     surface covered by another petal nearest RHS 75A, and between RHS     76B and RHS 76C where adaxial surface exposed to sunlight, with     primary and secondary veins nearest RHS 76D; -   Flower lastingness: One to two days; -   Gynoecium: Single; partially enclosed in column;     -   -   Column.—Glabrous and lustrous; fringed distally with acute             apices; about 37 mm long and about 9 mm across at base; with             pistil exserted about 11 mm.         -   Column color.—Basal 5 mm nearest RHS 53A and next proximal 5             mm nearest RHS NN155D with some thin longitudinal lines of             nearest RHS 53A, distal 20 mm between RHS 53D and RHS             NN155D.         -   Style.—Micro-puberulent in region exserted above column,             glabrous in region contained in column; about 4.7 cm long,             basally penta-furcate in about distal 8 mm; branch diameter             about 1.2 mm; color basally nearest RHS NN155C, distally             transitioning to between RHS 61C and RHS 61B in exserted             portion.         -   Stigma.—Typically, five; flattened ellipsoidal, puberulent,             to about 3 mm in diameter and 1 mm tall; color nearest RHS             61A.         -   Ovary.—Superior, conical, rounded to broadly acute apex and             flat truncate base; irregularly and longitudinally fluted;             about 8 mm across at base and about 8 mm tall; color nearest             RHS 145C. -   Androecium: Filaments: numerous, about 120; about 4 mm long and     about 0.2 mm diameter; attached along the entire length of column;     color in proximal portion of column nearest RHS NN155C and distally     between RHS 55B and RHS 60D;     -   -   Anthers.—Flattened reniform; dorsifixed; about 2 mm long and             1 mm across and thick; color nearest RHS 11B; nearest RHS             16C. -   Pedicel: Cylindrical; glabrous, mostly straight, glaucous; upright,     diameter; decreasing in distal flowers; -   Pedicel color: Between RHS 146D and RHS 146C, without anthocyanin; -   Peduncle: Cylindrical, glabrous, glaucous; to about 148 cm long and     22 mm diameter at base, average 140 cm long and 12 mm diameter at     base; flowering in the distal one-third; with up to seven     non-flowering branches that are up to 2 cm long; -   Peduncle color: Between RHS 146D and RHS 145A; -   Fruit: Penta-loculicidal capsule; puberulent outer surface and     pubescent along inner septa with hairs of nearest RHS 158A to about     3 mm long; globose to ellipsoidal, cuspidate apex and truncate base;     about 33 mm long and 226 mm diameter; color nearest RHS 200B when     mature; about 45 to 90 seeds per fruit; -   Seed: Minutely puberulent; globose; about 3 mm in diameter; color     nearest RHS N199B; -   Resistance: Hibiscus ‘Lilac Crush’ has not displayed any pest and     disease resistance beyond that typical of hardy perennial Hibiscus. -   Growth requirements: The plant grows best with plenty of moisture. -   Hardiness at least from USDA zone 4 through 9. 

I claim:
 1. A new cultivar of hardy herbaceous perennial Hibiscus hybrid plant named ‘Lilac Crush’ as herein illustrated and described. 